Rawlins Wastewater Treatment Plant (A 2) Reservoir Report

Last Updated: December 5, 2025

The Rawlins Wastewater Treatment Plant (A 2) in Carbon, Wyoming is a crucial facility that plays a significant role in managing and treating wastewater from the local community.


°F

°F

mph

Wind

%

Humidity

Summary

Owned by the local government, this treatment plant is regulated by the State of Wyoming and has a permit for operation, inspection, and enforcement. Designed by Mickey M. Yamashiro, this facility was completed in 1978 and serves as a vital infrastructure for maintaining water quality in the area.

Situated near Sugar Creek and the North Platte River, the Rawlins Wastewater Treatment Plant (A 2) has a dam height of 15 feet and a structural height of 17 feet. With a normal storage capacity of 59 acre-feet and a surface area of 140 acres, this facility helps to manage the drainage area of 0.2 square miles effectively. Despite being classified as having a significant hazard potential, the condition assessment of the plant is rated as fair, indicating a need for ongoing maintenance and monitoring to ensure its continued safe operation.

Overall, the Rawlins Wastewater Treatment Plant (A 2) serves as a critical infrastructure for wastewater management in Carbon, Wyoming. With its earth dam structure and stone core, this facility plays a vital role in protecting water quality and public health in the region. As a key component of the local water resource management system, it is essential for enthusiasts and stakeholders to stay informed about the plant's condition, regulatory oversight, and risk management measures to ensure its long-term sustainability and effectiveness.

Year Completed

1978

Dam Length

3000

Dam Height

15

River Or Stream

SUGAR CREEK, TRIB NORTH PLATTE

Primary Dam Type

Earth

Surface Area

140

Hydraulic Height

14

Drainage Area

0.2

Nid Storage

59

Structural Height

17

Hazard Potential

Significant

Foundations

Soil

Nid Height

17
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.